STMPE1208S| Datasheet

Datasheet preview, take a look at Datasheets before downloading (Data Sheet is available on manufacturer site)

STMPE1208S
12 channel touch key controller
Data Brief

Features

12 touch key capacitive sensor inputs 12-bit general purpose Input/Output Operating voltage 2.5-5.5V 98uA in active mode, 60uA in idle mode Dual interrupt output pin I2C interface (Up to 400KHz) 8kV HBM ESD protection Idle and sleep mode for low power operation Advanced Filtering System (AFS) Environment tracking calibration (ETC) Individually adjustable TouchVariance (TVR) setting for all channels Adjustable EnvironmentalVariance (EVR) for optimal calibration QFN40 5mm x 5mm

Applications

Notebook Computer, Monitor Set Top Box, Television Portable media player, Game console Mobile phone, Smart phone Home Entertainment Systems Domestic Appliances

Description
The STMPE1208S is a GPIO 12 channel capacitive touch key sensor able to interface a Main Digital ASIC via the two-line bidirectional bus (I2C). It senses changes in capacitance using a fully digital architecture, giving fast and accurate results at very low power consumption. Automatic Impedance Calibration ensures that changes in environment will never affect the correct operation of the capacitive touch keys.

Table 1. Device summary
Part Number STMPE1208SQTR Package QFN40 5mm x 5mm Packaging Tape and reel

June 2007

Rev 1

1/12
www.st.com 12

For further information contact your local STMicroelectronics sales office.